Syndromic surveillance summary: 4 September 2025 week 35
Updated 4 September 2025
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Reporting week 35: 24 to 31 August 2025
During week 35, most syndromic indicators were following baseline patterns. ED COVID-19 like attendances remained stable but slightly elevated compared to earlier in the year. There was an increase in GP out-of-hours daily contacts for chest pain (including myocardial infarction).
Remote health advice syndromic surveillance system
During week 35 most remote health indicators were stable or decreasing.
We are currently investigating a potential data quality and coding issue within NHS 111 online assessments across selected indicators in the South East region. Therefore, recent trends in online assessment data for the South East should be interpreted with some caution; this has particularly affected the ‘vomiting’, ‘acute respiratory infections’ and ‘eye problems’ indicators in recent weeks. This has impacted the national trend, especially in adults aged 45 years and over.
Access the remote health advice syndromic surveillance bulletins
GP in-hours syndromic surveillance system
During week 35 GP consultation rates for pharyngitis increased slightly nationally but remain below baseline levels. Other respiratory indicators remained stable and are similar or below seasonally expected levels.
Access the GP in-hours syndromic surveillance bulletins
GP out-of-hours syndromic surveillance system
During week 35, there was an increase in GP out-of-hours daily contacts for chest pain (including myocardial infarction).
We continue to investigate a potential change in coding practice by one GP out-of-hours service provider during week 32 (from Monday 4 August). This may have impacted national trends, causing small increases in some syndromic indicators from the beginning of August.
Access the GP out-of-hours syndromic surveillance bulletins
Emergency department syndromic surveillance system
During week 35, ED attendances for ‘COVID-19-like’ illness remained slightly elevated compared to earlier in the year, with a very small increase in adults aged 15 to 44 years. All other respiratory indicators were stable or decreased.
Access the emergency department syndromic surveillance bulletins
Ambulance syndromic surveillance system
During week 35, daily ambulance calls for ‘impact of heat or cold’ were stable and at seasonally expected levels, in line with cooler weather across England.